Improved apparatus for propelling machinery



NJETERS, PHDTOJJTHOGRAPNER. WASHIWTON, D. C.

nted 'glatte dWILLIAM Z.' W. CHAPMAN, or NEW YORK, NJY.

Letters Patent No. 94,809, dated September 14, 1869.

IMPROVED APPARATUS FOR PROPELLING MACHINERY.

w The Schedule referred to in these Letters Patent and` making part of the same To all to whom these presents shall come:

Beit known that 1, WILLIAM Z. W. CHAPMAN, of the city, county, and State of New York, have invented certain new and useful Improvements in Apparatus for Propelling Machinery of' a Light Character, which I. denominate an Accelerated Motor; and I do hereby declare and ascertain my said improvements as follows, referring to the accompanying drawings, in which* Figure 1 is a top view.

Figure 2 is a front elevation.

Figur T?- is a modification of: the accelerating-appa ratus.

Figure 3M* is a section interior of clutch.

Figure 4 is an end view.

Figure 5 is a front elevation of apparatus for regulating velocity, modified form.

Figures 6, 7, and 8 show parts of modified rockshaft, as seen in lig. 5, at c,s, lt, u.

Figures i) and 10 exhibit device by which rods 4, in gs. 4 and 5, may be held in any position.

Figure 1l represents knob-fixture x, in Iig. 4, enlarged.

Figures 4bis and 5bil show device to operate idler 3.

Various devices have been heretofore essayed for driving light machinery, such as weights, springs, cranks, and treadles, Ste., but most ot them haveproved objectionable in some particular. Those driven by cranks and weights involved manual labor at a time when the whole attention should be directed to the Working of the machine, and these, although probably the most direct, fatigue the operator, and are injurious to the health, while weights and such like motors are not compact, or require too much time and attention from the operator.

My newly-invented motor is to obvlate these diiilculties. The construction is as follows:

A is a heavy-rimmed fly-wheel, running on a shaft, a, and connected with a driving-shaft bya belt, b, over fast and loose pulleysc ol, on the driving-shaft, and a fast pulley, o2, on the motor-shaft, a common device, clearly shown in the drawing.

On the motor-shaft a there isa drum, d, of sufficient length and diameter for the purpose, on which the accelerating-drum (l, about to he described, bears, to put the motor-wheel A in rapid motion, or accelerate its motion, when necessary, as required.

In the drawing, the drum d is suspended in afi-ame, e e, so as to be raised from or brought into Contact with said drum d, and when at rest, itis kept ont of contact-with drum d, by the spring f, or other suitable device.

The drum d is driven by a spur-wheel, g, gearing into a Apinion `on the shaft of drum d', the wheel g heing propelled by the crank h or treadle t'.

on line a a, iig. 3, showing To connect and disconnect the drum olf/'with drum d, I have devised'several Ways, one of which is illustrated in the drawing, where la is a rock-shaft that bears drum d down on to drum d, by moving alongthc arm liu front; Vhen thus in contact, the crank hy is turned, by which the fly-wheel A is putin motion, and after getting up a proper velocity thereon, the drum clis'thrown out of contactwith' drum d, and the ily-wheel is left free to drive the machinery by its momentum. As the speed of the fly-wheel-slackens, the accelerator is again put into connection, and the velocity of the ily-wheelagain accelerated.

The drums d a may be cylindrical, as seen in figs. l, 2, or they may have V-grooves cut around them that gear into each other, as seen in detached Figure 2, to increase their surfaces of contact, it' found desirable. If a treadle moved by the foot is used, instead of the crank, it may be connected or detached in a similar way with the motor. These may be done as shown in the drawing, by moving the parts into place, by meansot' independent levers or arms land m, worked by the hand or foot, or by automatic devices, such as forcing the crank h inward,-as shown in the modied device, fig. 5, before turning it, or otherwise, the purpose being to readily connect the accelerating-power with the driving-power, and when this is sniiiciently accelerated, to instantly disconnect the parts, either by separating them er' so detaching'the connection as to allow the motor to run on rapidly, while the accelerator remains at rest,-thus obtaining the full force of' the acceleration on the working-point, without any retarding effect therefrom.

A brake, n, can be added, to stop the ily-wheel, also a clutch, w, to check back motion, and cone-pnlleys, to regulate the speed, or a series of loose belts, e, (see iigs. 4 and 5,) with different-sized pulleys e', on the driving-shalt, and idler-pulleys 3, iig. 4, operated on by treadles 5, or otherwise, connect-ed, by tubes 8, rods 4, and levers 9, with said idler, pulleys 3, to bring either of them into operation, or retire them, and thus start and stop, or vary the velocity of the machine, and a greater -or less strain can be, by this means, brought' uponthe belts, to suit the purposes of the operator, in varying the speed of the machine driven.

A modified form of attaching and detaching the. accelerator is represented in iig. 3 and tig. 3, in which A is t-he fly-wheel, a its shaft, resting in bearings in standards b b.

The clutch-wheel c is fixed on the shaft. a with a rim, d, of equal thickness, and turned smooth.

Projecting from one face, ois a hollow bearing, projecting from standard b, in which the journal of shaft a turns, and on the outside of said hollow bearing the pinion-wheel h revolves. projectstoward the clutch-wheel c.

m isa clutch, that lits loosely the rim d, and gripes The huh lt of' this pinion lg;

it when the inner end 4 is thrown outward from the shaft by thev part 3. This end 4 rests Vloosely between projections 2 and 3 (see fig. 3m) from the hub h.

The pinion h `gears into a spur-wheel, n, on the shaft of which there is a crank, s, by which it is driven.

Vhen the pinion his turned faster than lthe iiywheel, nz/clutches the said rim d, and accelerates the momentum of the y-Wheel, but when the pinion h' moves slower than the y-Whcel, or is in a'state of rest, tlleclutch is freed, and the fly-wheel moves independent of the accelerator.

A driving-belt is shown at u, to connect with working-machinery.

It is obvious that instead of pressing the drums d d' together, as in figs-1, 2, a belt may be put around them and tightened, to drive them. together, or loosene'd, to detach them, thus attaching and detaching A' herein described, with a iiy-wheel, which drives the said iiy-wheel, and from time to time accelerates its motion, as described, and when at rest, permits the said flyewheel to continue its motion independent of and unretarded by said accelerator, substantially as and for the purposes set forth.

WM. Z. W. CHAPMAN.

Witnesses:

BRADFORD JONES, SAMUEL B. J ONES;- 

